Yobei Views Read Edit View history. The 2N, 2N, and 2N devices, for example, which date back to the s but have been improved, are datasheer useful in new designs and are still popular for experimenters. Graf; Datasheer Sheets Retrieved 31 October The exact performance characteristics depend on the manufacturer and date; before the move to the epitaxial base version in the mids the f T could be as low as 0. Modern 2N datasheets often, but not always, specify f T of 2.
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Yobei Views Read Edit View history. The 2N, 2N, and 2N devices, for example, which date back to the s but have been improved, are datasheer useful in new designs and are still popular for experimenters.
Graf; Datasheer Sheets Retrieved 31 October The exact performance characteristics depend on the manufacturer and date; before the move to the epitaxial base version in the mids the f T could be as low as 0. Modern 2N datasheets often, but not always, specify f T of 2. In other projects Wikimedia Commons. The art of electronics 2nd ed.
Variants with higher voltage ratings e. An MJ PNPwhich is also manufactured using the epitaxial process today, is a complementary transistor to the 2N The frequency at which gain begins to drop off may be much lower, see below.
The total power dissipation written P D in most American datasheets, P tot in European ones depends on the heatsink to which the 2N is connected.
The KD have higher power and higher current than 2N Wikimedia Commons has media related to 2N Nevertheless, a 2N and many other power transistors originating from this era cannot be assumed to have great high-frequency performance and there can be degradation of phase-shift and open-loop gain even within the audio frequency range.
It was second sourced by other manufacturers; Texas Instruments listed a single-diffused mesa version of the device in an August datasheet.
New Jersey Semiconductor The 2N remains very popular as a series pass transistor in linear power supplies and is still used in for medium- current and high- power datashest generally, including low frequency power converters although its use in audio power amplifiers and DC-to-AC inverters is now less common and its use in higher frequency switch-mode applications never was very practical.
Also the higher frequency response has improved performance when used in audio amplifiers. Sometimes the V CBO breakdown voltage the maximum voltage between collector and base, with the emitter open, an unrealistic arrangement in practical circuits is given as the only voltage rating, which can cause confusion. This page was last edited on 22 Novemberat With changes to semiconductor manufacturing technology, the original process became economically uncompetitive in the mids, and a similar device was created using epitaxial base technology.
Other manufacturers around this time also would specify similar values e. It was introduced in datasehet early s by RCA using a hometaxial power transistor process, transitioned to an epitaxial base in the mids. It was produced exclusively by the Czechoslovakian electronics company Tesla. The team of design, production, and applications engineers received RCA Electronic Components achievement awards in datzsheet Modern successors to the 2N can be much more suitable in fast-switching circuits or high-end audio power amplifiers.
The device is designed to operate with an efficient heatsink, but care must be taken to mount the device properly,    else physical damage or worsened power handling may result, especially datawheet cases or heatsinks that are not perfectly flat.
The maximum collector-to-emitter voltage for the 2N, like other datashet, depends on the resistance path the external circuit provides between the base and emitter of the transistor; with ohms a 70 volt breakdown rating, V CERand the Collector-Emitter Sustaining voltage, V CEO susis given by ON Semiconductor.
It is by now unlikely to actually obtain a genuine 2N transistor when using popular sales platforms such as Amazon or Ebay; classic electronics distributors are mostly still able to properly source them. It often has a transition frequency of around 3. Related Articles
2N3055 Datasheet, Equivalent, Cross Reference Search
In this post we comprehensively discuss the pinout function, electrical specification, and application designs for the power transistor 2N If you are an electronic hobbyist, you might have certainly used this very useful, and efficient power transistor at least once in your experiments. I have used 2N transistor many number of times in many of my high current circuit applications without any issues. In the common emitter mode which is most frequently used configuration, the emitter pin is connected with the ground line or the negative supply line. The base is connected across the input signal through which the transistor needs to be switched ON or OFF.
2N3055 Datasheet, Pinout, Application Circuits
The device has good amplifying factor and also the gain is almost linear making 2N one of best solution for power amplifiers. How to use 2N Transistor As mentioned earlier the 2N can be used for any NPN transistor applications but for understanding the functioning of device let us consider a simple application circuit as shown below. Here we are going to use 2N as a simple switching device to drive a motor and is in common emitter configuration. As show in circuit we are using a motor as the load and the gate signal for turning ON the transistor is provided by 5V source with button being the triggering device.
New Jersey Semiconductor